Add withGetdns compile option

Disambiguate Unix constants

Include getdns in depends.tup build metadata

Implement startBatch & endBatch for Linux

Add depends.tup build metadata

Add some property strings

Listen on both IPv6 and and IPv4 by default

Build refactor

*.nimble: swap nim:bin key and value

Migrate from Nimble to CycloneDX

BSD: set accepted TCP connections as non-blocking

Rewrite Solo5 implementation for CPS

Use compiler string.h builtins if possible

Tweak lwip/opt.h

Add isLinkLocal(IpAddress)

Update build metadata

Add send batching

fixup callback redirections

lwip: implement MEM_LIBC_MALLOC

Bypass osLastError